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Finding the Fourth Proportional to 937.08, 1,293.72 and 833.28

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Solution

The fourth proportional to 937.08, 1,293.72 and 833.28 is: 1,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.08 : 1,293.72 = 833.28 : x
  2. Step 2: Convert to fraction form
    937.08/1,293.72 = 833.28/x
  3. Step 3: Cross multiply
    937.08x = 1,293.72 × 833.28
  4. Step 4: Simplify right side
    937.08x = 1,078,031.00
  5. Step 5: Solve for x
    x = 1,078,031.00/937.08
  6. Step 6: Final answer
    x = 1,150.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.